Tuna are among the top predators in the oceans. But the hunter is also the hunted: many species are overfished. Can we use the riches of the oceans without destroying them?
Uli Kunz
Score: 6.6
Score: 5.6
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Score: 6.7
Score: 3.5
Score: 10.0
Score: 3.0
Score: 0.0
